Railway-track bolt.



W. L. BUGLE. RAILWAY TRACK BOLT.-

APPLIOLTION FILED oo'r. so, 1908.

, 973,470. Patented 0ch25, 1910.

WILLIAM L. BOGLE, OF COLUMBUS, MISSISSIPPI.

RAILWAY-TRACK BOLT.

Specification of Letters Patent.

Patented Oct. 25, 1910.

Application filed October 30, 1908. Serial No. 460,362. 7

To all whom it may concern:

Be itknown that I, WILLIAM L. BOGLE, a citizen of the United States, residing at Columbus, in the county of Lowndes and State of Mississippi, have invented a new and useful Railway-Track Bolt, of which the following is a specification.

This invention relates to rail-way track bolts and more particularly to that class of bolts especially designed for connecting the angle bars or fish plates of rail-way track joints.

The object of the invention is to provide a track bolt having an enlarged head fitting flat against the web of the fish plate and closing the hole therein against entrance of water, the lower longitudinal edge of said head being inclined to conform to and adapted to bear against the correspondingly inclined face of the adjacent angle bar, thereby to prevent rotation or vibration of the nut incident to the passage of trains and other rail-way rolling stock.

A further object of the invention is generally to improve this class of devices so as to increase their utility, durability and efficiency.

Further objects and advantages will appear in the following description, it being understood that various changes in form, proportions and minor details of construction may be resorted to within the scope of the appended claim.

In the accompanying drawings forming a part of this specification :Figure 1 is a side elevation of the adjacent ends of mating rails showing a track bolt constructed in accordance with my invention and in position thereon. Fig. 2 is a transverse sectional view. Fig. 3 is a detail perspective view of one of the track bolts detached.

Similar numerals of reference indicate corresponding parts in all of the figures of the drawings.

The improved track bolt forming the subject' matter of the present invention is principally designed for connecting the fish plates or angle bars of rail-way rails at the juncture of mating rail sections, and by way of illustration is shown applied to a rail joint of the ordinary construction in which 5 designates the mating ends of the rail sections and 7 the fish plates.

The fish plates 7 are preferably in the form of angle bars, as shown, and are each provided with a web having a flat outer face and a laterally extending downwardly inclined flange 6 which bears against the correspondingly inclined upper face of the base flange of the rail, said angle bars and rails being pierced by a plurality of transverse openings for the reception of the track bolts 8.

The track bolts 8 are each provided with an enlarged head 9, flat on its under face so as to rest flat against the flat outer face of the web of 'the fish plate. The upper portion of the head is curved or rounded, while the lower portion thereof is formed with a depending extension 10, the lower longitudinal edge of which is flared laterally and inclined or beveled to conform to and adapted to bear against the correspondingly inclined upper face of the flange 6 of the adjacent angle bar, thereby to prevent rotation or vibration of thenuts 11 incident to the passage of cars and other rail-way rolling stock. The flanges 6 of the fish plates or angle bars are preferably extended laterally beyond the base of the adjacent rails 5 and are provided with one or more notches or recesses 12 for the reception of spikes or similar fastening devices 13 by means of which the angle bars are rigidly secured to the cross ties 14. That portion of each bolt adjacent the head 9 is elliptical in cross section, as indicated at 15, for engagement with a correspondingly shaped recess formed in the adjacent angle bar 7,

thereby to assist in preventing turning or rotary movement of the bolt. That portion of the bolt 8 extending through the web of the rail is substantially cylindrical in cross section, while the terminal of the bolt is threaded at 16 for engagement with the clamping nuts 11, the shanks of the bolts being of such size as to permit a slight longitudinal movement of the rails to allow for expansion and contraction of the latter.

By forming the lower portion of the head 9 with the inclined or beveled edge 17, the bolt is not only prevented from vibrating or rotating and thus causing the nut to work loose, but friction between the head of the bolt and the adjacent angle bar is reduced to a minimum.

The extension of the head of the bolt by engagement with the inclined surface of the ward car in a train, thus preventing spreading of the rails at the joints, and derailment of the remaining cars in the train.

The bolts may be made in different sizes and shapes and as many of said bolts employed at each rail joint as may be found desirable or necessary to effect the union of the mating ends of the rails.

Having thus described the invention What is claimed is:

The combination with mating rail ends, of fish-plates overlapping the rail ends and having webs flat on their outer faces and downwardly inclined lateral flanges, one of the fish-plates having elliptical openings in its web, bolts inserted through the webs and the rail ends and each having an enlarged head to cover the opening in the adjacent fish-plate, its inner face being fiat to fit against the web and its lower edge being straight and beveled to engage against the flange of the fish plate, the bolt being further provided with an elliptical enlargement adjacent the head to engage the opening in the fish-plate, and nuts mounted on the ends of the bolts.

In testimony that I claim the foregoing as my own, I have hereto affixed my signature in the presence of two witnesses.

V. L. BOGLE.

Vitnesses:

WVM. R. MooDY, W. P. PRoURoE. 

